misc: Prepare the release of libosmocore 0.9.0

Bump the ABI version of libosmovty and we need to do this
recursively to force rebuilds of our software.
diff --git a/debian/changelog b/debian/changelog
index 16a1f41..bf79c74 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,11 @@
+libosmocore (0.9.0) unstable; urgency=medium
+
+  * StatsD support
+  * Disable building of static libraries
+  * GTP Hub and OAP ports/identifiers assigned
+
+ -- Holger Hans Peter Freyther <holger@moiji-mobile.com>  Tue, 03 Nov 2015 09:31:41 +0100
+
 libosmocore (0.8.3) unstable; urgency=medium
 
   * Prepare new release